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Finding the Fourth Proportional to 247,089.61, 340,974.51 and 133,909.93

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Solution

The fourth proportional to 247,089.61, 340,974.51 and 133,909.93 is: 184,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,089.61 : 340,974.51 = 133,909.93 : x
  2. Step 2: Convert to fraction form
    247,089.61/340,974.51 = 133,909.93/x
  3. Step 3: Cross multiply
    247,089.61x = 340,974.51 × 133,909.93
  4. Step 4: Simplify right side
    247,089.61x = 45,659,872,765.88
  5. Step 5: Solve for x
    x = 45,659,872,765.88/247,089.61
  6. Step 6: Final answer
    x = 184,790.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.